AT25DF041A-SSH-B Microchip Integrated Circuit (Small Outline Packages) In Stock
The AT25DF041A-SSH-B is a 4Mbit SPI serial Flash memory from Microchip, featuring a 2.7 V to 3.6 V operating voltage, 6 ns minimum read access time, and 104 MHz SPI clock support in an 8-pin SOIC package. It offers sector, block, and chip erase operations with hardware and software write protection for reliable nonvolatile code and data storage. In stock and available for worldwide shipping for embedded systems, IoT, and consumer electronics applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- AT25DF041A-SSH-B Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AT25DF041A-SSH-B?
- 4Mbit (512KB) SPI Flash with 104 MHz clock rate supports fast program code read and execute-in-place workflows
- Ultra-fast 6 ns read access time enables high-throughput data streaming in time-sensitive embedded applications
- 2.7 V to 3.6 V supply voltage with hardware and software write protection for safe nonvolatile storage
- 8-pin SOIC package with RoHS compliance enables compact PCB integration and automated assembly
What is AT25DF041A-SSH-B used for?
The AT25DF041A-SSH-B is commonly used for firmware and bootloader storage in microcontroller-based embedded systems where fast SPI read access is critical. Its sector-erase granularity and write protection features make it well suited for over-the-air update systems in IoT devices and wireless sensor nodes. The low operating voltage and small 8-pin SOIC package also fit wearable electronics, smart cards, and battery-powered data logging equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the AT25DF041A-SSH-B datasheet?
AT25DF041A-SSH-B Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for AT25DF041A-SSH-B?
Compatible alternatives and drop-in replacements for AT25DF041A-SSH-B:
Frequently Asked Questions
What is the storage capacity of the AT25DF041A-SSH-B?
The AT25DF041A-SSH-B is a 4Mbit (512 kilobyte) Serial Flash memory. It is internally organized into 2048 pages of 256 bytes each, with 64 KB block erase, 4 KB sector erase, and full chip erase operations supported for flexible data management.
What SPI clock frequency does the AT25DF041A-SSH-B support?
The AT25DF041A-SSH-B supports SPI clock frequencies up to 104 MHz in standard single-bit mode, enabling high-speed data transfers between the Flash and host microcontroller. The 6 ns minimum read access time complements this high clock rate for rapid sequential reads.
What supply voltage does the AT25DF041A-SSH-B require?
The AT25DF041A-SSH-B operates from a VCC supply of 2.7 V to 3.6 V, making it directly compatible with 3.3 V microcontroller and FPGA I/O interfaces without requiring level shifting in most designs.
What write protection features does the AT25DF041A-SSH-B have?
The AT25DF041A-SSH-B provides both hardware write protection via the /WP pin and software write protection through status register bits. Individual sectors and blocks can be independently protected, allowing partial updates while keeping critical regions such as bootloaders locked.
What package options are available for the AT25DF041A-SSH-B?
The AT25DF041A-SSH-B is offered in an 8-pin SOIC (208 mil wide body) surface-mount package. Microchip also offers the same die in alternative packages including 8-pin DFN and UDFN for ultra-compact, space-constrained board designs.
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